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Numerical observation of Hawking radiation from acoustic black holes in atomic Bose-Einstein condensates

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arxiv 0803.0507 v2 pith:Q64FAZZV submitted 2008-03-04 cond-mat.other gr-qchep-th

Numerical observation of Hawking radiation from acoustic black holes in atomic Bose-Einstein condensates

Iacopo Carusotto , Serena Fagnocchi , Alessio Recati , Roberto Balbinot , Alessandro Fabbri This is my paper
classification cond-mat.other gr-qchep-th
keywords hawkingatomicbose-einsteinnumericalradiationacousticagreementanalog
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report numerical evidence of Hawking emission of Bogoliubov phonons from a sonic horizon in a flowing one-dimensional atomic Bose-Einstein condensate. The presence of Hawking radiation is revealed from peculiar long-range patterns in the density-density correlation function of the gas. Quantitative agreement between our fully microscopic calculations and the prediction of analog models is obtained in the hydrodynamic limit. New features are predicted and the robustness of the Hawking signal against a finite temperature discussed.

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    cond-mat.mes-hall 2019-07 unverdicted novelty 5.0

    Simulations indicate that negative-curvature graphene membranes can form stable analogue horizons whose local density of states exhibits thermal character at a few tens of Kelvin.